Translation for Annual Archives

Hello,
plugin is great. But into archive file there isnt any languages files. Can I ask you pelase, what is correct name of the .po name and in which directory i should put it?

I put under wp-content/plugins/anual-archive and wp-content/plugins/anual-archive/languages files
si_SI.po
si_SI.mo
anual-archive-sl_SI.mo
anual-archive-sl_SI.po
wp-plugins-anual-archive-stable-sl.po
wp-plugins-anual-archive-stable-sl.mo

but nothing grabs. I search for words on display page “Yearly Archives:”

https://www.pdslivnica.com/2016/

Can you helm me please correct right file under languages.
thank you a lot!

The page I need help with: [log in to see the link]